The sand and gravel resources of the country around Hatfield and Cheshunt, Hertfordshire : description of 1:25,000 sheets TL 20 and 30, and parts of TQ 29 and 39

Gozzard, J.R.

NORA

The sand and gravel resources of the country around Hatfield and Cheshunt, Hertfordshire : description of 1:25,000 sheets TL 20 and 30, and parts of TQ 29 and 39

Gozzard, J.R.. 1981 The sand and gravel resources of the country around Hatfield and Cheshunt, Hertfordshire : description of 1:25,000 sheets TL 20 and 30, and parts of TQ 29 and 39. London, UK, British Geological Survey, 81pp. (Mineral Assessment Report 67) (Unpublished)